PKHeX/PKHeX.Core/Legality/Verifiers/MemoryVerifier.cs
Kurt a7ba178005 Remove unreachable/const logic
Earlier compares result in some logic being unnecessary

The Gen7 level up move compare was actually an oversight, so it's a worthwhile fix :)
2020-06-27 22:44:14 -05:00

362 lines
16 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using static PKHeX.Core.LegalityCheckStrings;
using static PKHeX.Core.Encounters6;
using static PKHeX.Core.Encounters8;
namespace PKHeX.Core
{
/// <summary>
/// Verifies the <see cref="PKM.OT_Memory"/>, <see cref="PKM.HT_Memory"/>, and associated values.
/// </summary>
public sealed class MemoryVerifier : Verifier
{
protected override CheckIdentifier Identifier => CheckIdentifier.Memory;
public override void Verify(LegalityAnalysis data)
{
VerifyOTMemory(data);
VerifyHTMemory(data);
}
private CheckResult VerifyCommonMemory(PKM pkm, int handler, int gen)
{
var memory = MemoryVariableSet.Read(pkm, handler);
// Actionable HM moves
int matchingMoveMemory = Array.IndexOf(Memories.MoveSpecificMemories[0], memory.MemoryID);
if (matchingMoveMemory != -1)
{
// Gen8 has no HMs, so this memory can never exist.
if (gen != 6 || (pkm.Species != (int)Species.Smeargle && !Legal.GetCanLearnMachineMove(pkm, Memories.MoveSpecificMemories[1][matchingMoveMemory], 6)))
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
}
switch (memory.MemoryID)
{
// {0} saw {2} carrying {1} on its back. {4} that {3}.
case 21 when gen != 6 || !Legal.GetCanLearnMachineMove(new PK6 {Species = memory.Variable, EXP = Experience.GetEXP(100, PersonalTable.XY.GetFormeIndex(memory.Variable, 0))}, 19, 6):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
case 16 when memory.Variable == 0 && !GetIsMoveKnowable(pkm, gen, memory.Variable):
case 48 when memory.Variable == 0 && !GetIsMoveKnowable(pkm, gen, memory.Variable):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
// {0} was able to remember {2} at {1}'s instruction. {4} that {3}.
case 49 when memory.Variable == 0 && !GetIsMoveLearnable(pkm, gen, memory.Variable):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
}
if (gen == 6 && !Memories.CanHaveIntensity(memory.MemoryID, memory.Intensity))
{
if (pkm.Gen6 || (pkm.Gen7 && memory.MemoryID != 0)) // todo: memory intensity checks for gen8
return GetInvalid(string.Format(LMemoryIndexIntensityMin, memory.Handler, Memories.GetMinimumIntensity(memory.MemoryID)));
}
if (gen == 6 && memory.MemoryID != 4 && !Memories.CanHaveFeeling(memory.MemoryID, memory.Feeling))
{
if (pkm.Gen6 || (pkm.Gen7 && memory.MemoryID != 0)) // todo: memory feeling checks for gen8
return GetInvalid(string.Format(LMemoryFeelInvalid, memory.Handler));
}
return GetValid(string.Format(LMemoryF_0_Valid, memory.Handler));
}
private static bool GetIsMoveKnowable(PKM pkm, int gen, int move) => Legal.GetCanKnowMove(pkm, move, gen);
private static bool GetIsMoveLearnable(PKM pkm, int gen, int move) => Legal.GetCanRelearnMove(pkm, move, gen);
/// <summary>
/// Used for enforcing a fixed memory detail.
/// </summary>
/// <param name="data">Output storage</param>
/// <param name="m">Memory ID</param>
/// <param name="i">Intensity</param>
/// <param name="t">Text Variable</param>
/// <param name="f">Feeling</param>
private void VerifyOTMemoryIs(LegalityAnalysis data, int m, int i, int t, int f)
{
var pkm = data.pkm;
if (pkm.OT_Memory != m)
data.AddLine(GetInvalid(string.Format(LMemoryIndexID, L_XOT, m)));
if (pkm.OT_Intensity != i)
data.AddLine(GetInvalid(string.Format(LMemoryIndexIntensity, L_XOT, i)));
if (pkm.OT_TextVar != t)
data.AddLine(GetInvalid(string.Format(LMemoryIndexVar, L_XOT, t)));
if (pkm.OT_Feeling != f)
data.AddLine(GetInvalid(string.Format(LMemoryIndexFeel, L_XOT, f)));
}
private void VerifyHTMemoryNone(LegalityAnalysis data, PKM pkm)
{
if (pkm.HT_Memory != 0 || pkm.HT_TextVar != 0 || pkm.HT_Intensity != 0 || pkm.HT_Feeling != 0)
data.AddLine(GetInvalid(string.Format(LMemoryCleared, L_XHT)));
}
private void VerifyOTMemory(LegalityAnalysis data)
{
var pkm = data.pkm;
var Info = data.Info;
switch (data.EncounterMatch)
{
case WC6 g when !g.IsEgg && g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case WC7 g when !g.IsEgg && g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case WC8 g when !g.IsEgg && g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case IMemoryOT t when !(t is MysteryGift): // Ignore Mystery Gift cases (covered above)
VerifyOTMemoryIs(data, t.OT_Memory, t.OT_Intensity, t.OT_TextVar, t.OT_Feeling);
return;
}
int memoryGen = Info.Generation;
int memory = pkm.OT_Memory;
if (pkm.IsEgg)
{
// Traded unhatched eggs in Gen8 have OT link trade memory applied erroneously.
if (memoryGen != 8 || !(pkm.Met_Location == Locations.LinkTrade6 && memory == 4))
{
VerifyOTMemoryIs(data, 0, 0, 0, 0); // empty
return;
}
}
else if (!CanHaveMemory(pkm, memoryGen, memory))
{
VerifyOTMemoryIs(data, 0, 0, 0, 0); // empty
return;
}
// Bounds checking
switch (memoryGen)
{
case 6 when pkm.XY && (memory > Memories.MAX_MEMORY_ID_XY || Memories.Memory_NotXY.Contains(memory)):
case 6 when pkm.AO && (memory > Memories.MAX_MEMORY_ID_AO || Memories.Memory_NotAO.Contains(memory)):
case 8 when pkm.SWSH && (memory > Memories.MAX_MEMORY_ID_SWSH || Memories.Memory_NotSWSH.Contains(memory)):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadID, L_XOT)));
break;
}
// Verify memory if specific to OT
switch (memory)
{
// No Memory
case 0: // SWSH trades don't set HT memories immediately, which is hilarious.
data.AddLine(Get(LMemoryMissingOT, memoryGen == 8 ? Severity.Fishy : Severity.Invalid));
VerifyOTMemoryIs(data, 0, 0, 0, 0);
return;
// {0} hatched from an Egg and saw {1} for the first time at... {2}. {4} that {3}.
case 2 when !Info.EncounterMatch.EggEncounter:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadHatch, L_XOT)));
break;
// {0} became {1}s friend when it arrived via Link Trade at... {2}. {4} that {3}.
case 4 when pkm.Gen6:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadOTEgg, L_XOT)));
return;
// {0} went to the Pokémon Center in {2} with {1} and had its tired body healed there. {4} that {3}.
case 6 when memoryGen == 6 && !Memories.GetHasPokeCenterLocation((GameVersion)pkm.Version, pkm.OT_TextVar):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadLocation, L_XOT)));
return;
case 6 when memoryGen == 8 && pkm.OT_TextVar != 0:
data.AddLine(Get(string.Format(LMemoryArgBadLocation, L_XOT), ParseSettings.Gen8MemoryLocationTextVariable));
return;
// {0} was with {1} when {1} caught {2}. {4} that {3}.
case 14:
var result = GetCanBeCaptured(pkm.OT_TextVar, Info.Generation, (GameVersion)pkm.Version) // Any Game in the Handling Trainer's generation
? GetValid(string.Format(LMemoryArgSpecies, L_XOT))
: GetInvalid(string.Format(LMemoryArgBadSpecies, L_XOT));
data.AddLine(result);
return;
}
data.AddLine(VerifyCommonMemory(pkm, 0, Info.Generation));
}
private static bool CanHaveMemory(PKM pkm, int origin, int memory)
{
if (pkm.GG) // LGPE never assigns memories
return false;
if ((pkm.VC || pkm.Gen7) && memory != 4) // Generation 7 - Trade memory or nothing
return false;
if (origin < 6) // NDS/3DS
return false;
if (pkm.IsEgg) // Eggs should not have memories
return false;
return true;
}
private void VerifyHTMemory(LegalityAnalysis data)
{
var pkm = data.pkm;
var Info = data.Info;
var memory = pkm.HT_Memory;
if (pkm.IsUntraded)
{
if (memory == 4 && WasTradedSWSHEgg(pkm))
{
// Untraded link trade eggs in Gen8 have HT link trade memory applied erroneously.
// Verify the link trade memory later.
}
else
{
VerifyHTMemoryNone(data, pkm);
return;
}
}
if (pkm.Format == 7)
{
VerifyHTMemoryTransferTo7(data, pkm, Info);
return;
}
var memoryGen = pkm.Format >= 8 ? 8 : 6;
// Bounds checking
switch (memoryGen)
{
case 6 when memory > Memories.MAX_MEMORY_ID_AO:
case 8 when memory > Memories.MAX_MEMORY_ID_SWSH || Memories.Memory_NotSWSH.Contains(memory):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadID, L_XHT)));
break;
}
// Verify memory if specific to HT
switch (memory)
{
// No Memory
case 0: // SWSH trades don't set HT memories immediately, which is hilarious.
data.AddLine(Get(LMemoryMissingHT, memoryGen == 8 ? Severity.Fishy : Severity.Invalid));
VerifyHTMemoryNone(data, pkm);
return;
// {0} met {1} at... {2}. {1} threw a Poké Ball at it, and they started to travel together. {4} that {3}.
case 1:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadCatch, L_XHT)));
return;
// {0} hatched from an Egg and saw {1} for the first time at... {2}. {4} that {3}.
case 2:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadHatch, L_XHT)));
return;
// {0} went to the Pokémon Center in {2} with {1} and had its tired body healed there. {4} that {3}.
case 6 when memoryGen == 6 && !Memories.GetHasPokeCenterLocation(GameVersion.Gen6, pkm.HT_TextVar):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadLocation, L_XOT)));
return;
case 6 when memoryGen == 8 && pkm.HT_TextVar != 0:
data.AddLine(Get(string.Format(LMemoryArgBadLocation, L_XOT), ParseSettings.Gen8MemoryLocationTextVariable));
return;
// {0} was with {1} when {1} caught {2}. {4} that {3}.
case 14:
var result = GetCanBeCaptured(pkm.HT_TextVar, memoryGen, GameVersion.Any) // Any Game in the Handling Trainer's generation
? GetValid(string.Format(LMemoryArgSpecies, L_XHT))
: GetInvalid(string.Format(LMemoryArgBadSpecies, L_XHT));
data.AddLine(result);
return;
}
var commonResult = VerifyCommonMemory(pkm, 1, memoryGen);
data.AddLine(commonResult);
}
private static bool WasTradedSWSHEgg(PKM pkm) => pkm.Gen8 && (pkm.WasTradedEgg || pkm.WasBredEgg);
private void VerifyHTMemoryTransferTo7(LegalityAnalysis data, PKM pkm, LegalInfo Info)
{
// Bank Transfer adds in the Link Trade Memory.
// Trading 7<->7 between games (not Bank) clears this data.
if (pkm.HT_Memory == 0)
{
VerifyHTMemoryNone(data, pkm);
return;
}
// Transfer 6->7 & withdraw to same HT => keeps past gen memory
// Don't require link trade memory for these past gen cases
int gen = Info.Generation;
if (3 <= gen && gen < 7 && pkm.CurrentHandler == 1)
return;
if (pkm.HT_Memory != 4)
data.AddLine(Severity.Invalid, LMemoryIndexLinkHT, CheckIdentifier.Memory);
if (pkm.HT_TextVar != 0)
data.AddLine(Severity.Invalid, LMemoryIndexArgHT, CheckIdentifier.Memory);
if (pkm.HT_Intensity != 1)
data.AddLine(Severity.Invalid, LMemoryIndexIntensityHT1, CheckIdentifier.Memory);
if (pkm.HT_Feeling > 10)
data.AddLine(Severity.Invalid, LMemoryIndexFeelHT09, CheckIdentifier.Memory);
}
private static bool GetCanBeCaptured(int species, int gen, GameVersion version)
{
switch (gen)
{
// Capture Memory only obtainable via Gen 6.
case 6:
switch (version)
{
case GameVersion.Any:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsX, StaticX)
|| GetCanBeCaptured(species, SlotsY, StaticY)
|| GetCanBeCaptured(species, SlotsA, StaticA)
|| GetCanBeCaptured(species, SlotsO, StaticO);
case GameVersion.X:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsX, StaticX);
case GameVersion.Y:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsY, StaticY);
case GameVersion.AS:
return GetCanBeCaptured(species, SlotsA, StaticA);
case GameVersion.OR:
return GetCanBeCaptured(species, SlotsO, StaticO);
}
break;
case 8:
{
switch (version)
{
case GameVersion.Any:
return GetCanBeCaptured(species, SlotsSW.Concat(SlotsSH), StaticSW.Concat(StaticSH));
case GameVersion.SW:
return GetCanBeCaptured(species, SlotsSW, StaticSW);
case GameVersion.SH:
return GetCanBeCaptured(species, SlotsSH, StaticSH);
}
break;
}
}
return false;
}
private static bool GetCanBeCaptured(int species, IEnumerable<EncounterArea> area, IEnumerable<EncounterStatic> statics)
{
if (area.Any(loc => loc.Slots.Any(slot => slot.Species == species)))
return true;
if (statics.Any(enc => enc.Species == species && !enc.Gift))
return true;
return false;
}
}
}